This term's background fundamentals is on Tech We Love: and we are starting by looking at Deep Compositing. The concept is closely aligned to that of Deep Shadows the hugely influential 2000 Pixar Siggraph paper by Tom Lokovic and Eric Veach. So much so that when we came to film some elements to help explain it this week - we used as the base of the shot a set of Siggraph Conference Proceedings (Ok so that is truly geek humor).